GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Canadian Science Publishing  (9)
  • Biodiversity Research  (9)
  • 1
    Online Resource
    Online Resource
    Effects of oceanographic circulation on the gene flow, genetic structure, and phylogeography of the rosethorn rockfish ( Sebastes helvomaculatus )
    Canadian Science Publishing ; 1999
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 56, No. 5 ( 1999-05-01), p. 803-813
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 56, No. 5 ( 1999-05-01), p. 803-813
    Abstract: The genetic structure and phylogeography of 88 rosethorn rockfish (Sebastes helvomaculatus) from five localities (California, Oregon, British Columbia, and two in the Gulf of Alaska) were analyzed using DNA sequences from the mitochondrial control region. High levels of genetic diversity (h 〉 85%) and significant population genetic structure (F ST = 0.13, P 〈 0.001; AMOVA Φ ST = 0.15, P 〈 〈 0.001) were found. A significant genetic break was detected (Φ CT = 0.22, P 〈 〈 0.001) coinciding with the transition zone between the Oregonian and Aleutian zoogeographic provinces and consistent with retention and dispersal mechanisms associated with the oceanographic circulation of the region. A correlation between geographic distance and population genetic distance supported the hypothesis of gene flow dominated by pelagic-phase dispersal. Oregonian province populations had higher haplotype diversity, with 〉 70% of the individuals representing a recent lineage absent in the Aleutian province. This suggests a limited northward dispersal across the zoogeographic boundary. The phylogeographic stucture may be due to a founder effect in the Aleutian province or an ocean circulation driven pseudo-vicariance. These results demonstrate that organisms with protracted pelagic-phase stages and high dispersal capability can exhibit population genetic structure that reflects their historical demography and present dispersal patterns.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/f99-004
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 1999
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Energy Metabolism in a Rapidly Developing Marine Fish Egg, the Red Drum ( Sciaenops ocellata )
    Canadian Science Publishing ; 1983
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 40, No. 5 ( 1983-05-01), p. 627-634
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 40, No. 5 ( 1983-05-01), p. 627-634
    Abstract: Rates of utilization of different lipid classes, glycogen, protein, and adenine nucleotides in the eggs of red drum (Sciaenops ocellata) were measured concurrently throughout embryonic development. Red drum eggs are small, pelagic, and very rapidly developing, going from fertilization to hatching in as little as 19 h at natural spawning temperatures. Wax esters comprised about 50% of the neutral lipid reserve along with triglyceride. Lipid was quantitatively the most important energy reserve supplying virtually all of the catabolic demand. Total lipid content decreased 30% from 23.6 to 16.6 mg/g during development. Glycogen decreased 53% from 0.279 to 0.103 mg/g. Protein did not contribute to catabolism. Total adenylates, primarily ATP, decreased from 564 to 271 nmol/g. Adenylate energy charge decreased from 0.87 to 0.58. Glycogen and lipid were used concurrently rather than sequentially during development. The rapid rate of development could be accounted for by simple thermal effects on metabolism rather than any unique biochemical adaptation. High concentrations of wax ester may be an adaptation for maintaining buoyancy at reduced salinities.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/f83-082
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 1983
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Population genetic structure in the redefined vermilion rockfish (Sebastes miniatus) indicates limited larval dispersal and reveals natural management units
    Canadian Science Publishing ; 2009
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 66, No. 9 ( 2009-09), p. 1569-1581
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 66, No. 9 ( 2009-09), p. 1569-1581
    Abstract: Recent studies have revealed that the vermilion rockfish Sebastes miniatus is a cryptic species pair. The splitting of this species impacts stock size estimates and draws attention to the unintended consequences of current management policies. Differences in exploitation level between the species necessitated an evaluation of population structure and connectivity among regional management segments of the fishery. Analysis of gene flow and calculations of larval dispersal values were accomplished using 782 bp of DNA sequence data from the mitochondrial cytochrome b gene of 684 vermilion rockfish sampled from 16 sites between Kyuquot Sound, Canada, and San Quintin, Mexico. Significant genetic heterogeneity was found among sample sites (Φ ST = 0.0742, p  〈 0.001 and F ST = 0.0899, p  〈 0.001). Isolation by distance analysis produced a significant correlation, suggesting low average larval dispersal distance. Analysis of molecular variance showed significant partitioning of genetic variance across the biogeographic boundary at Point Conception (Φ CT = 0.0923, p  〈 0.001 and F CT = 0.0135, p  〈 0.001) with additional genetic barriers found at Cape Mendocino, Punta Colnett, Santa Monica Bay, and along the coast of Washington. These genetic barriers conform to oceanographic compartments previously proposed for the California Current Ecological Province and suggest natural management units for this species.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/F09-104
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 2009
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    A steep genetic cline in yellowtail rockfish, Sebastes flavidus , suggests regional isolation across the Cape Mendocino faunal break
    Canadian Science Publishing ; 2011
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 68, No. 1 ( 2011-01), p. 89-104
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 68, No. 1 ( 2011-01), p. 89-104
    Abstract: As with all Sebastes species, yellowtail rockfish ( S. flavidus ) produce larvae with an extended pelagic juvenile phase that can be advected in coastal currents. While dispersal potential is high, previous research on population genetic characteristics of Sebastes species indicates that apparent realized dispersal can be much lower and can exhibit complex patterns of genetic structure. We assayed 812 bp of the mitochondrial cytochrome b gene and six microsatellite loci in ∼1000 yellowtail rockfish collected from 21 sites that span the species range from southern California to southeastern Alaska. An abrupt genetic cline near Cape Mendocino, California, splits the range into a northern and southern stock, and is highly concordant between our mitochondrial (F CT = 0.32, p ≪ 0.001) and microsatellite (F CT = 0.02, p ≪ 0.001) datasets. We show that this pattern may be due to a combination of physical (oceanographic or other barriers to larval dispersal), biological (habitat differences), and historical events. This study, and both intra- and inter-specific evidence from other marine species suggests Cape Mendocino demarcates two regions experiencing divergent evolutionary trajectories, and should be considered in management strategies.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/F10-131
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 2011
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Bathymetric demography and niche separation of thornyhead rockfish: Sebastolobus alascanus and Sebastolobus altivelis
    Canadian Science Publishing ; 1996
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 53, No. 3 ( 1996-03-01), p. 600-609
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 53, No. 3 ( 1996-03-01), p. 600-609
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/f95-207a
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 1996
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Use of Adenylate Concentrations and Adenylate Energy Charge as Indicators of Hypoxic Stress in Estuarine Fish
    Canadian Science Publishing ; 1982
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 39, No. 4 ( 1982-04-01), p. 535-541
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 39, No. 4 ( 1982-04-01), p. 535-541
    Abstract: Normal ATP concentrations in the white muscle of 11 different estuarine fish species varied from 3.91 to 6.59 μmol/g. Concentrations of different adenylates in the white muscle were not related to a species' natural level of swimming activity. When fish were exposed to hypoxia, ATP concentrations declined as much as 72% in some species. Decreases in ATP were not reflected in stoichiometric increases in ADP or AMP but rather in a reduction in total adenylate concentration. Sensitivity to hypoxia, expressed as changes in adenylate concentrations, was related to a species' natural level of activity and habitat preference. ATP concentration, total adenylate concentration, and adenylate energy charge appear to be useful indicators of environmental stress.Key words: ATP, energy charge, hypoxia, stress assessment
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/f82-076
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 1982
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Effect of life history strategy, environmental variability, and overe×ploitation on the genetic diversity of pelagic fish populations
    Canadian Science Publishing ; 1999
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 56, No. 8 ( 1999), p. 1376-1388
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 56, No. 8 ( 1999), p. 1376-1388
    Type of Medium: Online Resource
    ISSN: 1205-7533 , 0706-652X
    URL: Article
    DOI: 10.1139/cjfas-56-8-1376
    Language: Unknown
    Publisher: Canadian Science Publishing
    Publication Date: 1999
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Population structure of copper rockfish ( Sebastes caurinus ) reflects postglacial colonization and contemporary patterns of larval dispersal
    Canadian Science Publishing ; 2002
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 59, No. 8 ( 2002-08-01), p. 1374-1384
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 59, No. 8 ( 2002-08-01), p. 1374-1384
    Abstract: The copper rockfish (Sebastes caurinus) is a benthic, nonmigratory, rocky reef species with pelagic larval and juvenile stages lasting several months. Adults are commonly distributed in temperate coastal waters of the Pacific Ocean from British Columbia to southern California, including the inland waterways of Puget Sound, Washington, a semi-enclosed fjord system of known postglacial origin. Here, we report the distribution of genetic variation at six microsatellite DNA loci from six locations throughout the species' range. Among four coastal samples, significant population subdivision was detected (F ST = 0.007), and a significant correlation between genetic and geographic distance was observed. Divergence was large and significant between Puget Sound proper and coastal samples (F ST = 0.087). A sample taken only 100 km north of Puget Sound (the Canadian Gulf Islands) was also highly divergent from Puget Sound and coastal samples and was genetically intermediate between the two. The Puget Sound sample also displayed significantly lower allelic diversity and a more substantial presence of private alleles. The patterns of genetic divergence and diversity are most consistent with a historical colonization followed by limited oceanographic exchange among geographically proximate locations.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/f02-101
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 2002
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Effect of life history strategy, environmental variability, and overexploitation on the genetic diversity of pelagic fish populations
    Canadian Science Publishing ; 1999
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 56, No. 8 ( 1999-08-01), p. 1376-1388
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 56, No. 8 ( 1999-08-01), p. 1376-1388
    Abstract: We study the effect of recruitment failures and variance in reproductive success on effective population size (N e ) in populations with type III survivorship curves. Special emphasis is put on determining the causes for the large differences in the genetic variability between populations of Pacific sardine (Sardinops sagax) and northern anchovy (Engraulis mordax). The results indicate that moderate differences in life history between ecologically related species can lead to substantial differences in N e . The effect of fluctuations in vital rate parameters induced by environmental changes on N e depends on the life history of each species. The ratio of N e to census size is directly proportional to the total reproductive value of a population, but the sensitivity of this ratio to environmental fluctuations is inversely proportional to the generation overlap. The larger the generation overlap, the smaller the impact of environmental fluctuations on the level of genetic variability maintained by a population. The large difference in heterozygosity between Pacific sardine and northern anchovy populations is likely due to both life history differences between the two species and a recent arrival (founder event) of the Pacific sardine population to the California Current System.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/f99-060
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 1999
    detail.hit.zdb_id: 7966-2
    detail.hit.zdb_id: 1473089-3
    SSG: 21,3
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...